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CleanTechnica
Jul 25, 2014, 7:22 am19 ptsOriginally published on Green Building Elements By John Perlin John Perlin’s book, “Let It Shine: The 6000-Year Story of Solar Energy,” tells of a scheming thirteenth century priest/scientist who tries to convince the Pope to start a solar weapons’ race by showing him a treatise written by an early…
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